org.graylog2.utilities.ConfigurationMapConverter Maven / Gradle / Ivy
/**
* This file is part of Graylog.
*
* Graylog is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Graylog is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Graylog. If not, see .
*/
package org.graylog2.utilities;
import com.google.common.collect.Maps;
import org.graylog2.plugin.configuration.ConfigurationRequest;
import org.graylog2.plugin.database.ValidationException;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
public class ConfigurationMapConverter {
/**
* Converts the values in the map to the requested types. This has been copied from the Graylog web interface
* and should be removed once we have better configuration objects.
*/
public static Map convertValues(final Map data, final ConfigurationRequest configurationRequest) throws ValidationException {
final Map configuration = Maps.newHashMapWithExpectedSize(data.size());
final Map> configurationFields = configurationRequest.asList();
for (final Map.Entry entry : data.entrySet()) {
final String field = entry.getKey();
final Map fieldDescription = configurationFields.get(field);
if (fieldDescription == null || fieldDescription.isEmpty()) {
throw new ValidationException(field, "Unknown configuration field description for field \"" + field + "\"");
}
final String type = (String) fieldDescription.get("type");
// Decide what to cast to. (string, bool, number)
Object value;
switch (type) {
case "text":
case "dropdown":
value = entry.getValue() == null ? "" : String.valueOf(entry.getValue());
break;
case "number":
try {
value = Integer.parseInt(String.valueOf(entry.getValue()));
} catch (NumberFormatException e) {
// If a numeric field is optional and not provided, use null as value
if ("true".equals(String.valueOf(fieldDescription.get("is_optional")))) {
value = null;
} else {
throw new ValidationException(field, e.getMessage());
}
}
break;
case "boolean":
value = "true".equalsIgnoreCase(String.valueOf(entry.getValue()));
break;
case "list":
final List valueList = entry.getValue() == null ? Collections.emptyList() : (List) entry.getValue();
value = valueList.stream()
.filter(o -> o != null && o instanceof String)
.map(String::valueOf)
.collect(Collectors.toList());
break;
default:
throw new ValidationException(field, "Unknown configuration field type \"" + type + "\"");
}
configuration.put(field, value);
}
return configuration;
}
}